Lista los puertos que son por defecto en los sistemas Windows.
| Servicio | Puerto # / Capa |
| FTP (default data channel) | 20 |
| FTP (control channel) | 21 |
| Telnet | 23 |
| Whois | 43 |
| Domain Name System | 53 |
| Bootp server | 67 |
| Bootp client | 68 |
| Trivial FTP | 69 |
| Gopher | 70 |
| HTTP | 80 |
| Kerberos | 88 |
| POP-2 (Post Office Protocol) | 109 |
| POP-3 | 110 |
| NNTP (Network News Transfer Protocol) | 119 |
| NTP (Network Time Protocol) | 123 |
| NT RPC endpoint mapper | 135 |
| NetBIOS Name Service | 137 |
| NetBIOS Datagram Service | 138 |
| NetBIOS Session Service | 139 |
| IMAP (Internet Message Access Protocol) | 143 |
| SNMP | 161 |
| SNMP Trap | 162 |
| BGP (Border Gateway Protocol) | 179 |